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Enabled '_' in the field/column name in input type. #327

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Merged
merged 5 commits into from
Jun 11, 2018
Merged

Enabled '_' in the field/column name in input type. #327

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3ee7e64
Enabled '_' in field name in the input type.
zeahmed Jun 7, 2018
d0a4af5
Using CSharpCodeProvider.IsValidIdentifier for validating column name.
zeahmed Jun 7, 2018
f30b8a8
Updated error message.
zeahmed Jun 7, 2018
71c5466
Merge remote-tracking branch 'upstream/master' into textloader_bug
zeahmed Jun 11, 2018
637a297
removed column name checking.
zeahmed Jun 11, 2018
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3 changes: 1 addition & 2 deletions src/Microsoft.ML/Data/TextLoader.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using Microsoft.CSharp;
using Microsoft.ML.Runtime;
using Microsoft.ML.Runtime.Api;
using Microsoft.ML.Runtime.Data;
Expand Down Expand Up @@ -84,8 +85,6 @@ public TextLoader CreateFrom<TInput>(bool useHeader = false,
$"Valid characters are 0-9, *, - and ~");

var name = mappingAttr.Name ?? field.Name;
if (name.Any(c => !Char.IsLetterOrDigit(c)))
throw Contracts.Except($"{name} is not alphanumeric.");

Runtime.Data.TextLoader.Range[] sources;
if (!Runtime.Data.TextLoader.Column.TryParseSourceEx(mappingAttr.Ordinal, out sources))
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12 changes: 12 additions & 0 deletions test/Microsoft.ML.Tests/TextLoaderTests.cs
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Expand Up @@ -32,8 +32,11 @@ public void ConstructorDoesntThrow()
Assert.NotNull(new Data.TextLoader("fakeFile.txt").CreateFrom<Input>(useHeader: false, supportSparse: false, trimWhitespace: false));
Assert.NotNull(new Data.TextLoader("fakeFile.txt").CreateFrom<Input>(useHeader: false, supportSparse: false));
Assert.NotNull(new Data.TextLoader("fakeFile.txt").CreateFrom<Input>(useHeader: false, allowQuotedStrings: false));

Assert.NotNull(new Data.TextLoader("fakeFile.txt").CreateFrom<InputWithUnderscore>());
}


[Fact]
public void CanSuccessfullyApplyATransform()
{
Expand Down Expand Up @@ -264,6 +267,15 @@ public class Input
public float Number1;
}

public class InputWithUnderscore
{
[Column("0")]
public string String_1;

[Column("1")]
public float Number_1;
}

public class ModelWithoutColumnAttribute
{
public string String1;
Expand Down